The Design And Implementation Of Network Hard Disk Storage Optimization Method

Web disk is a server that can supply file storage、accessing、copy and share, besupplied to user by net corporation. Synchronization refresh web disk by researchedbecause of adopt file copy technology to realize file synchronization refresh. However,if the file that be using by user is bigger, because of the speed of Internet is lower thanthe speed of data generation, it will cause bottleneck in synchronization refresh, it willinfluence the use and extend of synchronization refresh web disk.This paper presents a method of massive data cache in the synchronization refreshweb disk to ease the contradiction between the speed of data generation and the speed ofnetwork transmission.The main work of this paper is as follows:1、Presents a cache method by both memory and disk. It has low reducing of theperformance of I/O, and it improves the performance of the synchronization refresh webdisk.2、Presents methods of cache sharing and records merging. It increases the storageefficiency and reduces the network flow. It also reduces the pressure of the write replay.3、Presents a set of data consistency control methods to ensure the correctness ofthe data and improve the reliability of the synchronization refresh web disk.4、Presents a method of memory management. It provides the functions of memoryallocation and recycling. It improves the performance of the massive data cache byimproving the success rate of memory allocation in linux kernel space.5、Presents a method of the massive data cache management. This method bases onthe proc file system. It provides the real-time control function of the massive data cache.In summary, this paper presents a method of massive data cache in thesynchronization refresh web disk. By the experimental analysis, this method meets theneed of the synchronization refresh web disk, and it has a good performance.